Carbon markets are but a policy tool. One that still may, or may not, see long term adoption or favor over other policy tools. One can equally point to signs of encouragement and disappointment. Through a couple decades of trial and error, we have come to appreciate, and even brand, the technical foundation of climate policy implementation—Measurement, Reporting, and Verification (MRV)—which on its own is an achievement. Now that the carbon geeks have gained some recognition, they can educate the carbon market community with a more sophisticated understanding of MRV.